Obs. : 2011-02-19
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.068e+11
Venus      4.019e+11
Earth      3.836e+11
Mars       4.068e+11
Jupiter    4.004e+11
Saturn     4.038e+11
Uranus     4.067e+11
Neptune    4.068e+11
Pluto      3.994e+11